Reproduction of Ictalurus punctatus
Document source: http://fishbase.net.br/Reproduction/FishReproSummary.php?ID=290&StockCode=304
 
Main Ref. Riehl, R. and H.A. Baensch, 1991
Mode dioecism
Fertilization external
Mating type
Spawning frequency
Spawning aggregation Ref.  
Batch spawner Yes.   Ref.  Stoeckel, J.N. and B.M. Burr, 1999
Reproductive guild guarders
nesters
Parental Care paternal
Description of life cycle and mating behavior Spawning happens, depending on latitude, during the months of April-July, with temperatures between 27-28°C. Females lay their egges on a hole dug on sandy grounds. Incubation lasts 3-8 days, and larval development between 12-16 days, depending on temperature. The pair builds a depression in the ground, which is guarded by the male (Ref. 1672). Channel catfish requires cool water and short day lengths during the winter months for proper egg development; an egg mass can contain up to 20,000 eggs (Ref. 44091). Sexual maturity is reached at 2-3 years.
Search for more references on reproduction Scirus
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